Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7569079c3fb68d4…

MALICIOUS

PDF

76.4 KB Created: 2020-11-20 14:40:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: c827c3e117949fde0c2119103911928d SHA-1: 14e45dfe092c1a01bbf2922d7cae917a8f21d85d SHA-256: f7569079c3fb68d4e788a77e49a263bddb838352563e66c67be51026a14e93f0
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'https://cctraff.ru/123?utm_term=palisades+mental+health+clinic+variance+analysis'. This, combined with ML and ClamAV detections, strongly suggests malicious intent. The embedded URLs are likely part of a phishing or malware distribution chain, aiming to lure the user to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://cctraff.ru/123?utm_term=palisades+mental+health+clinic+variance+analysis In PDF document text
    • https://jedunaxalow.weebly.com/uploads/1/3/1/6/131606453/5275065.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370530/normal_5f9414d550524.pdfIn PDF document text
    • https://nofizosol.weebly.com/uploads/1/3/4/5/134500220/fajikixinejibuwoj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471092/normal_5fb792dad6dcb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408702/normal_5fb62a2413e3e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370530/normal_5fb4b5f3852a2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_5f8d66419f2f0.pdfIn PDF document text
    • https://lowurewuxuvid.weebly.com/uploads/1/3/4/4/134464573/vafaw_fozepigurosusuz_vuwalopajolena.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tobojelusiwi/buvigoxixuzusujumad.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/pebibunidurareruweno.pdfIn PDF document text
    • https://s3.amazonaws.com/penefelomiju/acheron_mammoth_guide_runescape.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e216.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE216 5020 bytes
SHA-256: 495d3255f6eee3236ef65b3fc52ddd9c6713f0bc26271967a6d40d32aeeec543
font_01_sfnt_off0000f2ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EF 10456 bytes
SHA-256: e73824407401bab76701af974c7f1b1c8dfaa3d408136ee400826d53cb4d8bf0
font_02_sfnt_off000116ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116AE 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

Open this report in the interactive analyzer, or submit your own file for analysis.